British star shell?

[Krt7.92]

Hello, who can help to identify this british star shell?

length: 33,5cm
base dia: +-10cm
fuze dia: 5cm

I would like to know:
-calibre?
-which fuze belongs to this shell?
-has someone a diagram of this shell?

Thanks!

 

[MINENAZ16]

Hello,
Looks like a 4in star shell.
Maybe MkX
Fuzed No81 or No181 (and maybe other time fuzes)
Regards

 

[Krt7.92]

Thank you!